Mine-roof support.



PATENTE) 1350.31, 19m.

u re M tot @Jim1/ms P. GLKEIGHLEY. MINE R00? SUPPQRT. APPLICATION FILED00T.16, 1907 .rarnurermen resulteren cl serenity, .or UNroN'rowN,PENNSYLVANIA.

f Minn-noonsurroncr.. 1'

To alliwhomit may conew rja'l @Beit known that; I, FREDERICK LEY`acitizem of the'United States, residing at niontown, in the. county ofFayette and; State of Pennsylvania, have invented a new and .usefulMine-.Roof -Supp'or't and 1 do hereby'declare the fo1 lowing' to be a`full, lelear,' and, exact description of. the' invern tion,-such as'will enableethers skilled in the 'art towhich it Vapr'iertains tomak'eand use This vinventioiipertains.Sto-mines gener# :ally, but more.especiallythe invention re'- sides inI a new, useful `andl novel'device, de-

v signed for supporting" the roof measures jin p coal andother mines,or,'in'other"words,' the I roofs of rooms4 Orheadings', whlch are cutthrough'the body ofthe coal-crore, and sub.-

s ta'ntiallyj 'at right' anglesl tothe shaft of the mine, through lwhichingress and egress is' vhad'to the mine.workings,jand.from whichrooms-or. headings, theco'al or ore is removed,

and elevated to 'the surface of the earth by v` means f'elevators, whichare 'usually dis# In its broadest aspect, the inventionaims i' -a's an'essential object to provide a device'of this .character which.`comprises lessential fea-` `tures "and elements ofy construction, which-A Vfeatures and elementsconsist of standards,

l posts vor'legs,- placed 'adjacent'to-the longitudinal sidewalls 'ofaroom orsheadin'g vof a vstandards or posts are placed from two to 'tierods or s tretchers 'support the timbers,

-. language), whic 445.

. nagging O1- foreoling, as' termed in mining',A .lare placed-'parallelwith the y .length of the room. or headingof the'mine;

to' dispose the standards or' posts, l'so as to allowv them to divergeoutwardly at the'top," the object' of whichis to take advantage- 'of A:5 '0' vthe factthat `whenthe weightis placed upon thfetie rods or'stretchers, bytheftimbers or lagging, the. tendency thereof will Ibe todraw the posts together, 4thus making an unusually strong -roof support,as will 'fb'ef clearly-ob- I 'served .in 'the drawings. -l The.divergi-ng' of tha .standards or posts accomplishes 'another spsiteatioof Letters Parana Application ned october 16, 1907. sesamo. 397.625.

posed within thesh'aft cfa mine,l as will be ereinafter clearlymanifest.

' ratent'ea'nec. s1, 19o?.

) O bject, for instance, Vmuch of the timber .usedin coal and othermines for supporting the roof thereof, in the usual manner, is brokenvery often by the expansion of the .roof measures; this device orapparatus will allow'the roof'to expand, Without breaking the supportingdevice, as there will be .p ansion of the rocks. In ordinary practice,

i rthe standards or posts divergefrom 'each `other, at the bottomthereof, and their upper ends' receive a cross bar this construction o fsupportfh'as been found to be impraeticable for supporting the roofmeasures. .1 The invention aims, by diver ing the standards or posts attheir upper ends, as a further4 enough give, stretch or elasticity, ineither vrods .or Wirerope, so. as to allow for' full'ex# object, toprovide means by which the tie rod or stretcher, disposed lat the ntopof ythe` sufficient 'amount of pressure 'against the standards or posts,are drawn taut, by a lowerportions ofthe standards'or-pos'ts, the

Will,`.as will. be readily observed, cause vthe said tie 'rodorstretcher tostretch. `rlhe' tie rods or stretchers support 4the timbers,lag# ging or forepoling, 'whichis disposed parallel tendency ofwhiclipressure being outwardly,

.with the lengthof'the room or heading, and I' which timbers in turnsupport the roof of the drawings.

room, as will .be plainlyl observed in ,the

y 'lhis invention comprises further objectsandv combinations of elementswhich will .90 the accompanying' drawings, and the novel pointed out bythe be hereinafter more fully described, shown in features thereof' willbe appended'claims.

"he features andl elements and-.the ar` i rangement' thereof, foraccomplishing.' .the'objects 'ofvthls ,device-orapparatus, may bechanged and varied, that is' to say, in a prac-v tions accruing fromsaid application are lim- `itedto the scope of. the appended claims.' fThe inventiondirccts as a further'objeetv To obtain a full and correctunderstanding .offthe details of -construction, combinations'l offeaturesfeleinents and advantages, refer.

Figure'l i's/ atransverse sectlonof 'a room,

'improved ,supporting-device disposed tliere y tical application 'of theinvention, with an understanding `that the changes andvaria-v in, forsupporting the roof measures.- Fig'. 2 l,

gitudinally therethrough, illustrating the uprigh-ts, ,standards orposts in elevation, as Well as illustrating the timbers, lagging or-forepoli'ng, for sup )orting the roof of the room. Fig. 3 is a detailperspective view of one end of one of the tie rods. Figs. 4, '5 and 6are plan views ol dillerent forms of tie rods, uponwhich the lagging orforepoling is disposed.

Like reference characters are utilized for indicating correspondingfeatures and' elements throughout the several views of the accompanyingdrawings.

In regard to the accompanying'drawings, wherein similar referencecharacters-indicate corres onding lparts in the several illustrations,liy figures, 1 designates a room or heading which is disp s e dYsubstantially at right angles to the mine shaft, as clearly shown. in

Figs. l and 2; positioned within this room or` headin and adjacent tothe longitudinal side wa ls, and substantially from two to l'our feetapart, are standards or posts 2, which diverge outwardly from oneanother, at their upper portions, the purpose of which. is here-vinlo'efore set forth.v l`he upper ends oi these standards or posts arebeveled, as at 3, which beveled portions engage themeinhers 4, which arealso inclined so to correspond with the bevel of the standards, andwhich members 4 are 'forced slightly inward, or embedded in the cornerof the room, which is formed by the roof 0l the room and the side wallsthereof, so that when the said standards or posts are placed under thesaine and forced outwardly at their lower portions, a wedging action isprovided, and together with the tie rods or stretchers, a very ellicientsupport is provided, comprising strength and durability.

Spanning the room, heading or mine, and adjacent to its rootl are tierods or strctchers 5, which are disposed transversely thereof,and'iarfe'cnnected to the standards or posts, as clearly shown in Figs.1 and 2. These tie rods or stretchers are provided with loops 6 at eachend thereof, and which engage the circumference of the standards orosts, adjacent their up )er ends, as will be cllfarly evident. To holthe tie rods or stretcher-s in close proximity to the roof, and toprevent the same, to a certain extent, from sli pping, wed es 7 areprovided which are in serted wit in the loops and yadjacent thecircumference of the standards or posts, Vas clearly shown in Fig. l;these wedges are held in their places by friction, asa rule, but itdesired, a spike or other means 8 :may be driveninto the standards orposts, and beneath the wedge, so Aas to prevent downward displacementthereof, as will be clearly evident.

The tie rods or stretchers, as shown in Figs. 1 and 2, su ort timbers,lagging or fore poling 9, W uch in turn supports the rool" measures, aswill be clearly manifest. The

marea drawings illustrate several different forms of tie rods orstretchers; in Fig. li, the aplicant has illustrated a cahle bent uponitself, so as to forni loops 10 and 10, and which are held in the formof loops by two different 'forms of devices 11 and 12, the device 11 ismerely an elliptical shaped ring which is'slippcd upon the cable, beforethe loop 10a is formed. rlhe body portion 13 an the end portions 14 cithe cable are securely held together and parallel with one another, hy.means of sta les 15, which. forms the device 12; the ends o thesestaples 15 are provided with registering apertures '16, through whichbolts 17 are inserted, and to ythe threaded ends of which nuts 18 areapplied,` so as to bind the portions 13 and lll together.

i ln Fig. 5 the tie rod is somewhat difierentl y formed, as shown; theloops are formed by bending the rod vupon itself, and the free ends ofsaid rod are coiled about the body portion ot' the rod, as at il), andvthe extreme ends, as at 20, are vformed into hooks which are engaged hyan elliptical shaped ring 2i. ln this Aform ol" tie rod, the same. ismade of solid material. :in Fig. 6, the tie rod is sin1ilar to thatshown in Fig. 5, with the exception/that the tree end portions merelycoiled about the body portion. oi the i shown at 22, thus leaving asingle thi` olt rod between the end portions.

`From the foregoing, the essential features, elements and the operationof the device, together with the simplicitj.r thereei, will be clearlyapparent. .l v

Having thus l'ully described the invention, what is claimed as new anduseful by the protection of Letters Patent, is',-- u

1. ln a rootl support for mines, a plurality ol` standards arranged inopposite rows, tiinber-supporting means connecting opposite stamlards,and wed fes to prevent downward displacement of sai( means.

2. ln a roof support lfor mines, a plurality of standards arranged inopposite rows, timber-supporting tie rods or stretchers connectingopposite standards, and wei'lges to prevent downward displacement ol"said tie. rods or strctchers. l

25. In a roof support lor mines, plurality of standards arranged inopposite rows, tie rods or stretchers having loops engagingandconnecting opposite standards, timbers sivpported by said tie rods orstretchers and means insertedin said loops to prevent downwarddisplacement of the tie rods.

'4. .ln a roof support i'or mines, a plurality of standards arranged inopposite rows, tie rods having loops engaging and connecting oppositestandards, vtimbers supported by said tie rods, and'lwedges inserted insaid loops to prevent downward displacement 0f the tie rods.

5. ln a roei' support lor mines, a plurality of standards arranged inrows and oppositely disposed so es to diverge outwardly at their upperportions and adjacent tlie longitudinal Wells of' the ruine, vtie rodsor streteliers oonneoting opposite standards end provided 'with loops toengage the circumference of the standards, said tie rods having meansfor holding the loops properly formed, Wedges to be inserted in seidloops and engage seid standards to prevent downward displacement or"tlie loops end'tirnbers supported by neme to this specification in thepresence of i5 two, subscribing witnesses. f

F EERQK C. KEGHLEY Witnesses J. E. CARRoLL,

DRUSILLA L. Cox.

